Chimney flashing reducer?

Old 10-06-16, 11:37 AM
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Chimney flashing reducer?

We're installing a direct vent gas fireplace in place of our wood burner. The new chimney will be 7.5" and the current one is 13". I'm told that I'll need to hire a roofer for the patch work since the new flashing won't have a large enough to base. The problem is that I can't find a roofer to do the job...they're all busy with more lucrative jobs.

What are my options? Is there a 7.5" flashing out there with a larger base? What about a reducer, so that we can run the new pipe through the 13" at the roof and then use the reducer to seal the annular space up top? We have an exposed chimney.
Old 10-06-16, 01:07 PM
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I would look for a different flashing. Some flare out naturally any bridge the distance over your existing hole.


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